TEYF2080B - 80Amp Circuit Breaker

TEYF2080B - 80 Amp Circuit Breaker

The TEYF2080B is a 2-pole, 80-amp bolt-on thermal magnetic circuit breaker designed to provide dependable overcurrent and short-circuit protection for commercial and industrial electrical distribution systems. Built for 480Y/277V Class applications, this breaker features a non-interchangeable trip unit that delivers consistent protection while helping maintain the integrity of your electrical system. Its bolt-on mounting design provides a secure connection that helps minimize movement and supports reliable performance in demanding environments. With interrupting ratings of 18kA at 480VAC and 65kA at 240VAC, the TEYF2080B is well suited for protecting feeders, branch circuits, lighting systems, and equipment where dependable circuit protection is essential. Whether you're replacing an existing breaker or maintaining electrical infrastructure, this thermal magnetic circuit breaker offers the performance and durability professionals expect for everyday operation.

Key Features and Benefits

• 80 Amp Continuous Current Rating: 80 Amp continuous current rating for a wide range of commercial and industrial applications.
• 2-Pole Configuration: 2-pole configuration for protecting two energized conductors in compatible electrical systems.
• Thermal Magnetic Trip Mechanism: Thermal magnetic trip mechanism provides protection against both overloads and short circuits.
• Bolt-On Mounting Design: Bolt-on mounting design delivers a secure installation and dependable electrical connection.
• Non-Interchangeable Trip Unit: Non-interchangeable trip unit helps ensure the breaker maintains its specified protection characteristics.
• 480Y/277V Class: 480Y/277V Class breaker designed for higher-voltage distribution systems.
• Interrupting Capacity: Interrupting capacity of 18kA at 480VAC and 65kA at 240VAC for reliable fault interruption in properly rated systems.
• Compact Design: Compact design simplifies installation in compatible panelboards and switchboard applications.
  

Technical Specifications

• Part Number: TEYF2080B
  
• Type: TEYF
  
• Circuit Breaker Style: Bolt-On Thermal Magnetic Circuit Breaker
  
• Trip Unit: Non-Interchangeable
  
• Poles: 2
  
• Current Rating: 80 Amps
  
• Voltage Class: 480Y/277V
  
• Interrupting Rating:
  • 18kA @ 480VAC
  • 65kA @ 240VAC
• Dimensions:
  • Height: 5.25 in.
  • Width: 2.00 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• Industry Standards: Manufactured to meet applicable industry standards for molded case circuit breakers.
• Installation Requirements: Designed for installation in compatible electrical distribution equipment in accordance with applicable electrical codes and manufacturer specifications.
• Suitable Applications: Suitable for use in applications requiring thermal magnetic overcurrent protection when installed and maintained by qualified personnel.
  

Where It Works Best

• The TEYF2080B is an excellent choice for commercial buildings, industrial facilities, institutional properties, office complexes, and other demanding electrical installations operating on 480Y/277V systems. It is commonly used to protect lighting circuits, panelboards, feeders, HVAC equipment, motors, and other branch circuit applications where dependable overcurrent protection and secure bolt-on installation are important. Its combination of an 80-amp rating, thermal magnetic protection, and high interrupting capacity makes it a practical solution for maintaining safe, reliable operation across a variety of electrical distribution systems.